(19)

(11)

EP 1 934 536 A2

(12)

(43) Date of publication: 25.06.2008 Bulletin 2008/26 (21) Application number: 05786461.3 (22) Date of filing: 15.08.2005

(51) International Patent Classification (IPC):  F25B 21/00(2006.01) (86) International application number: PCT/US2005/028885 (87) International publication number: WO 2007/021272 (22.02.2007 Gazette 2007/08)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK YU (71) Applicant: Carrier Corporation Farmington, CT 06034-4015 (US)	(72) Inventor: TSAI, Chung-Yi Arden Hills, MN 55112 (US) (74) Representative: Booth, Catherine Louise  Frank B. Dehn & Co. St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)